diff --git a/.cirrus.yml b/.cirrus.yml
index 0fe6fee..e23e4eb 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -4,6 +4,8 @@
 freebsd_task:
   name: FreeBSD
   freebsd_instance:
+    memory: 1500M
+    cpu: 1
     matrix:
       image_family: freebsd-13-2
       image_family: freebsd-12-4
@@ -46,6 +48,7 @@ linux_arm_task:
   arm_container:
     image: ubuntu:22.04
     memory: 400M
+    cpu: 1
 
   env:
     # Set to 10 instead of 1 to avoid problems when new commits are submitted
@@ -84,8 +87,11 @@ linux_arm_task:
 linux_musl_task:
   name: Linux MUSL
   container:
-    image: alpine:3.18
-    memory: 600M
+    memory: 400M
+    cpu: 1
+    matrix:
+      image: alpine:3.18
+      image: alpine:3.16
 
   env:
     # Set to 10 instead of 1 to avoid problems when new commits are submitted